Module: ASE::Writer

Included in:
ASE
Defined in:
lib/ase/writer.rb

Instance Method Summary collapse

Instance Method Details

#to_file(file) ⇒ Object 



3
4
5
6
 
# File 'lib/ase/writer.rb', line 3

def to_file(file)
  @file = file
  write!
end

#write! ⇒ Object 



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'lib/ase/writer.rb', line 8

def write!
  raise "Must specify an output file" if @file.nil?
  @file = File.new(@file, 'wb')

  palette_count = @palettes.keys.length
  color_count = @palettes.values.map{ |p| p.size }.inject { |sum, i| sum + i }

  # Signature
  @file.write "ASEF"

  # Version
  @file.write_ushort 1, 0

  # Number of blocks
  @file.write_ulong(color_count + (palette_count * 2))

  @palettes.each do |palette_name, palette|
    write_palette(palette_name, palette)
  end

  @file.write_ulong 0 # Group end block
  @file.close
end